Why does CapEx hit the balance sheet instead of the income statement?

What It Is

Growth CapEx funds expansion—new factories, additional equipment, capacity increases. It's discretionary spending aimed at future revenue growth.

Maintenance CapEx keeps existing assets functional—replacing worn machinery, repairing facilities. It's non-discretionary; skip it and your operations degrade.

How to Calculate It

Companies rarely disclose the split. Common approximations:

• Maintenance CapEx ≈ Depreciation (assets replaced at roughly the rate they wear out)
• Growth CapEx ≈ Total CapEx − Depreciation

Management commentary in earnings calls sometimes provides guidance. Otherwise, this is an analyst judgment call.

Key Consideration

The split matters enormously for valuation. A company spending heavily on growth looks expensive on FCF today but may be building future earnings. A company whose CapEx barely covers depreciation may be milking assets—great for near-term cash, dangerous long-term.

What It Is

CapEx appears in the Cash Flow from Investing Activities section, typically labeled "Purchases of Property, Plant and Equipment" or "Capital Expenditures." It's a cash outflow, shown as a negative number (or in parentheses).

How to Calculate It

Direct from the cash flow statement—no calculation needed. This is the authoritative source.

Alternatively, if you only have balance sheets and income statements, back into it:

$$\text{CapEx}=\text{Ending PP\&E (Gross)}-\text{Beginning PP\&E (Gross)}+\text{Disposals}$$

Key Consideration

CapEx is a cash concept. The income statement expense (depreciation) is allocated over years. This timing mismatch is why EBITDA and FCF can diverge wildly for capital-intensive businesses.

What It Is

Free Cash Flow (FCF) deducts CapEx from operating cash flow:

$$\text{FCF}=\text{Operating Cash Flow}-\text{CapEx}$$

This measures cash available to debt holders and equity holders after the company has reinvested in its asset base.

The Logic

Operating cash flow shows what the business generates. But a portion must be plowed back into assets to sustain (or grow) operations. What remains is truly "free."

Key Consideration

Some definitions use Unlevered Free Cash Flow (before interest) for enterprise valuation. The CapEx deduction remains constant regardless—you always subtract it because it's a real cash drain required to maintain the business.

What It Is

When a company capitalizes a cost, it records an asset on the balance sheet and expenses it gradually (depreciation/amortization). When it expenses a cost, the full amount hits the income statement immediately.

The Logic

GAAP and IFRS require capitalization when the expenditure provides future economic benefit beyond one year. A new machine produces widgets for a decade—expensing it entirely in Year 1 would distort profitability.

Key Consideration

Management has discretion at the margin. Aggressive capitalization inflates near-term earnings (lower immediate expense) but burdens future periods with depreciation. Watch for companies capitalizing costs that should arguably be expensed—it's a red flag for earnings quality.